Surgical-motor casing.



W. 9'. WINTER. SURGICAL'MOTOR CASING, APPLICATION FILED APR. 28. I916- Patented June 12, 191 7.

al wawtoi W47. 7 1527? Z'PP shell 4 is in place, but to remove the chuck from the motor when the nipple 5 or the end of the casing st engages the ring-catch 38 on the removal of the shell at. There is nothing to hold the chuck C against removal from the motor except the flange-32 and the nipple 5. Interiorly the conical portion 31 is cut to form a socket toseat the chamiei-ed or half-round flat-sided end 33 of a tool shank 3a. A cylindrical portion or sleeve 35 extends outwardly and carries two longitudinally separated cylindrical sleeves 3G and 87, suitably secured to the inner sleeve 35. A cam ring 38 having an inwardly directed flange 3t) and an outer cylindrical portion etO is located between the sleeves 5G and 37 and is pulled by a spring ll to one side, the spring being seated under a l'lange 42, formed as a part of the head The inner sleeve 35 is slotted at 43 throughout only' a fraction of its circumference to permit the entrance thereto through slot 39 of the cam ring 88. Each tool shank al is provided with a notch ll of a size to receive the flange of the cam ring 38. Finger pressure on the cam ring 38 against the action 0.1. the spring 41 is all'that is necessary to remove a tool such as the bone drill D.

What I claim and desire to secure by United States Letters Patent is l. A portable motor having a structural casing in combination with a removable sterilizable inclosing shell, said shell comprising two joinable parts; a bayonet joint for joining said parts; and means for anchoring said parts against turning relatively to said structural casing.

2. A two-part sterilizable shell for surgical motors having bayonet joint construction for purposes of assemblage and a plug means for securing one of said shell-parts to a structural part of said motor; means requiring a rotatlon of said second shellpart tor securing said second shell-part in position; and means con'iprising an electric connector for preventing a reverse rotation ot said second shell-part.

l. The combination with a surgical motor having various structural parts of a stcri,

dizable inclosing shell comprising two parts; means for securing one of said shell-parts to a structural part of said motor in a predetermined angular position; means for securing the second shell-part to the first shellpart requiring an angular or rotary movement; and separate means :torv locking said second shell-part against reverse angular mo vemcnt-J 5. A two-part sterilizablc shell harming a complete inclosure for a surgical motor; having a tubular extension forming a duct through said shell to permit the entrance of and to fit about a removable electrical plug.

(3. In surgical motors a sterilizable shell having an inturned flange 5; a tool-chuck having a flange 32 which by cooperation with flange 5 holds the chuck in operative position when said shell is in place; and a movable catch for holding said chuck against removal from said shell when said shell is removed from said motor.

In witness whereof I have signed my name to this specification, this 26th .day of April, 1916.

WM. A. V INTER.

D isclaime-r i n Letters Pate n't 0.1} 229,694.

shell-parts to 'a, structurolpart of said motor in s piccietemmssd so QISOLAIIWEB.

1229 6947- William A. Winter Ex st Orsn e N. J. sozioioAL-lkio'ion CASING Patent dated June12, 1917. The Kny-Sci'werer florpoz aiion. Enters this disclaimer To that artof the claim in said s eciiication which is in foliowin wordst U0 i o owl Disclaimer filed July 10, 1912 by the ossignee,

i. 1. A ortable motor having a structural-casing in combination with a remo vablo stsrilizab e mclosmgshel], said shell com rising two oin-able parts s bayonet joint for joining said parts; and means for one ioiing said against turning relatively to said structural casing; I

- 2. A two-part stei'ilizaole shell. for surgical motors having bayonet oint construotion for purposes of assemblage and a plug; and socket construction for locking the said bayonet joint construction.

3. The combination with o. sm'gicol motor hs viiig various striicturii-l ports, of s 'sterilizable inclosing shell comprising two pasts; means for securing one of so shell-ports to a structural part of said motor; zneems requiring rotation of second shell-port for securing said second sl'iolLpsrt inpos' I 1, comm-is ing an electric connector for preventin a reverse rotation of so" si elLport.

4. 'The combination with a surgics motor having vaiio parts of steriliza-ble inclosing shell comprising two parts; moans one of said or position; means for securing the SOGOIlll shelLpsi't to the first shell-port ieq'uliiuzg an angular or rotary movement; andsoparate means for looking said second shell g st against reverse angular, movement. r

' 5. A two-part sterilizable shell forming a complete inclosm'e for a surgical motor; having a tubular extension forming it duct through said shell to permit entrance of and to fit about a removable-electrical plug.

[Ojfim'olGazeite July 17, 1917.}

D isclaimer in Letters Patent 0, 1229,69 1.

for joinin sterilizable inolosing DISCLAIMER.

1,220,694.- William A. l /iota, East Orange, N. J SURe1oAL-MoToR CASING. Patent dated June12, 1917. Disclaimer filed July 10, 1917, by the assignee, The Kny-Scheerer Oowpbmtion. Enters t is disclaimerv To thatpartof the claim in said specification which is in the following words,- to-w1t:

1. A Portable motor haviog a structural casing in combination with a; removable .stenllzab e incloslngshell, said shelloom rising two oin-able parts a bayonet joint Cr said parts; and means for one iormg said parts against turning relatively l o to said structural casing;

r 2. A twoart sterilizable shell for sur ical motors havin be 'onet 'oint construction for purposes of assemblage and a plug and socket construction for locking the said bayonet 01m construction. v a surgical motor having various structural parts, of s.

3. The combination with shell comprising two parts; means for securing one of Sit-id shell-parts to a structural part of said motor; means requiring it rotation of s ld second shell-part for securing said second shell-port in position; and means coiiopjrising an electric connector for preventin I a. reverse rotation of said secoml slielLpart. 4. The combination with a surgica motor having various strum parts of a sterilizable inclosing shell comprising two parts; means foe securi. e of soil shell-parts to a structural port of said motor in o'predetermined se r position; means for securing the second shell-part to the first shell-part requir. on angular or rotary movement; and-separate means for locking said second shell-pert against .reverse angular. movement. i

5 A two-pert sterilizoble shell forming a complete inclosm'e for a surgical motor; having a tubular extension forming a electthrough said shell to permit entrance Ql an to fit about a removable-electrical plug."

[Qgflc'iol' Gazette July 1731917.] 

